I am in market for a used road bike...

You should be able to find one on craigslist.

Craigslist and eBay are good resources. You can find good deals, although there's lots of crap as well.

go to a store and try a few bikes to figure out which brands, material types, components are comfortable to you. also try to get a good idea about your size and this will vary from brand to brand too. if you realize you love a certain brand, and have an approximate size, check ebay and craigslist. and if you can't find one online, go for new! and i dont know where you live, but i say buy a really good lock and cable!

Thanks, guys! For some reason I always felt like it is not nice to try the bikes. I thought when I see one I like I should just buy it and than I can try it. Anyway, I guess since I we'll be paying so much for it there should not be a problem for them to let me ride it yo try it.

Bicycling magazine usually come out with buyer’s guides each year. I’ve found that doing research in the magazines before I go to the store helps me narrow down the choices. Here’s a link to the bicycling.com 2007 bike search page for road bikes

http://bikefinder.bicycling.com/ss.asp?Fam=RBikes